Ferromagnetism articles within Nature Communications

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  • Article
    | Open Access

    A room temperature single-phase multiferroic with large and strongly coupled polarization and magnetization is a long-sought goal in multiferroics research. Here, the authors predict a promising candidate, layered-perovskite metal Bi5Mn5O17, which is a ferromagnet, ferroelectric, and ferrotoroid.

    • Andrea Urru
    • , Francesco Ricci
    •  & Vincenzo Fiorentini

  • Article
    | Open Access

    Most of the energy harvesting principles are realized in heated-continuously systems. Here, the authors present a concept of high-frequency energy harvesting where the dissipated heat in a sample excites resonant magnons in a ferromagnetic metal layer.

    • Michal Kobecki
    • , Alexey V. Scherbakov
    •  & Manfred Bayer

  • Article
    | Open Access

    Thin samples CrI3 exhibit a phase transition under an applied magnetic field from layered antiferromagnetism to ferromagnetism. Here the authors observe an associated abrupt change in the magneto-Raman spectra, illustrating the sensitivity of Raman spectra to magnetic ordering.

    • Amber McCreary
    • , Thuc T. Mai
    •  & Angela R. Hight Walker

  • Article
    | Open Access

    The rich magnetic phase behaviour of MnSi reflects the complexity of the physics underlying itinerant ferromagnetism. Here the authors present evidence that MnSi is strongly influenced by Hund’s coupling effects, suggesting a broader class of materials may fall into the class of Hund metals.

    • Xiang Chen
    • , Igor Krivenko
    •  & Stephen D. Wilson

  • Article
    | Open Access

    Magnetic vortices such as skyrmions are promising for spintronic applications, however, little is known about the pinning effects strongly influencing their dynamics. Here, the authors map the interaction potential between defects and vortex cores down to the sub-nanometer scale enabling the better control of these magnetic textures.

    • Christian Holl
    • , Marvin Knol
    •  & Markus Morgenstern

  • Article
    | Open Access

    Ferromagnetism with a Curie temperature above room temperature in 2D materials is highly desirable for practical spintronics applications. Here, the authors demonstrate such phenomenon in monolayer MoS2 via in situ iron-doping and measured local magnetic field strength up to 0.5 ± 0.1 mT.

    • Shichen Fu
    • , Kyungnam Kang
    •  & Eui-Hyeok Yang

  • Article
    | Open Access

    Little is known about the underlying mechanism responsible for the spatial stability of magnon Bose-Einstein condensates. Here experimental evidence is provided for a repulsive interaction of magnons in the condensate resulting in its stabilization.

    • I. V. Borisenko
    • , B. Divinskiy
    •  & S. O. Demokritov

  • Article
    | Open Access

    Ferromagnetic quasi-atomic behavior of interstitial anionic electrons (IAEs) in practical electrides is yet to be discovered experimentally. Here, the authors reveal that IAEs in two-dimensional electride [Gd2C]²+⋅2e- behave as magnetic elements with their own magnetic moment.

    • Seung Yong Lee
    • , Jae-Yeol Hwang
    •  & Sung Wng Kim

  • Article
    | Open Access

    It is known that torques can be exerted on spins in a ferromagnet (FM) layer when an in-plane electric current is injected into a heavy metal (HM) layer in contact with the FM layer. Here, the authors demonstrate that torques can be generated without the current injection by shining instead circularly polarized light on the HM.

    • Gyung-Min Choi
    • , Jung Hyun Oh
    •  & Hyun-Woo Lee

  • Article
    | Open Access

    Magnons - collective excitations of electron spins - promise compact and fast electronics. However, the generation of short wave magnons is still quite challenging. Here, the authors demonstrate that by introducing a ferromagnetic layer, conventional coplanar waveguides can be used to efficiently generate such magnons.

    • Ping Che
    • , Korbinian Baumgaertl
    •  & Dirk Grundler

  • Article
    | Open Access

    Many complex oxides already have rich functional behavior but oxide heterostructures can exhibit new emergent properties. Yi et al. show that LSMO/SIO superlattices have a reversible electric-field-controlled structural phase transition that is not present in the constituent materials.

    • Di Yi
    • , Yujia Wang
    •  & Yuri Suzuki

  • Article
    | Open Access

    The Weyl semimetal Co\(_{3}\)Sn\(_{2}\)S\(_{2}\) exhibits a combination of magnetic ordering with a large anomalous Hall effect. Lachman et al. find an intrinsic exchange bias of this anomalous Hall effect and attribute it to the coexistence of ferromagnetism and spin glass behaviour.

    • Ella Lachman
    • , Ryan A. Murphy
    •  & James G. Analytis

  • Article
    | Open Access

    The motion of electrons in a complex magnetic background may generate novel magnetic interactions. Here, Grytsiuk et al. report that a peculiar orbital motion of electrons in response to a non-coplanarity of neighbouring spins leads to a topological orbital moment, which further gives rise to a new class of magnetic interactions.

    • S. Grytsiuk
    • , J.-P. Hanke
    •  & S. Blügel

  • Article
    | Open Access

    Although artificial Lieb lattices have been recently synthesized, the realization of a Lieb lattice in a real material is still challenging. Here the authors use tight-binding and first principle calculations to predict tunable topology and magnetism in recently discovered two-dimensional covalent-organic frameworks.

    • Bin Cui
    • , Xingwen Zheng
    •  & Bing Huang

  • Article
    | Open Access

    X-ray free electron lasers allow for studying the interaction of magnetic materials with intense X-rays beyond a linear response regime. Here, the authors demonstrate the onset of X-ray induced ultrafast demagnetization in Co/Pd multilayers via a redistribution of valence electrons on timescales shorter than 40 fs.

    • Daniel J. Higley
    • , Alex H. Reid
    •  & Joachim Stöhr

  • Article
    | Open Access

    The kagome lattice is increasingly known as a host for correlated topological electronic states. Here, Ye et al. report quantum de Haas-van Alphen oscillations of a ferromagnetic kagome material Fe3Sn2, where bulk electronic Dirac fermions are found to be modulated by rotation of the magnetic moment.

    • Linda Ye
    • , Mun K. Chan
    •  & Joseph G. Checkelsky

  • Article
    | Open Access

    Whether topological semimetal states can emerge in two-dimensional magnetic materials remains less understood. Here, Niu and Hanke et al. propose the concepts of mixed Weyl and nodal-line semimetallic phases by including the magnetization direction into the topological analysis in two-dimensional ferromagnets.

    • Chengwang Niu
    • , Jan-Philipp Hanke
    •  & Yuriy Mokrousov

  • Article
    | Open Access

    Exploring photon-polariton interactions advances not only the understanding of polariton dynamics but also the modern technologies. Here the authors take advantage of strong coupled magnons and microwave photons in a cross-cavity to achieve tunable cavity magnon polariton transport which can be potentially applied as logic devices.

    • J. W. Rao
    • , S. Kaur
    •  & C.-M. Hu

  • Article
    | Open Access

    The orbital degree of freedom can be as important as the charge and spin of the electron to the electronic phenomena. Here the authors show additional minimum in the angle-dependent magnetoresistance (MR) for the low temperature high magnetic field driven ferromagnetic state in CeSb which indicates the orbital flop induced MR anisotropy.

    • Jing Xu
    • , Fengcheng Wu
    •  & Wai-Kwong Kwok

  • Article
    | Open Access

    Exploring the magnon and phonon coupling may enable high efficiency magnonic applications. Here the authors show the observation, understanding and control of the magnon–phonon interaction by studying the magneto-acoustic resonance modes of a single thin-film Ni nanomagnet.

    • Cassidy Berk
    • , Mike Jaris
    •  & Holger Schmidt

  • Article
    | Open Access

    While ferromagnetism has been observed in an sp2 covalent-organic framework, its origin remains unclear. Here, by first-principle and tight-binding calculations, the authors identify the Lieb-lattice-like feature of the two-dimensional covalent-organic material and the Stoner mechanism responsible for its magnetic behavior.

    • Wei Jiang
    • , Huaqing Huang
    •  & Feng Liu

  • Article
    | Open Access

    Pursuing high Curie temperature magnetic insulators has been one of the extensively studied subjects due to their wide appeal for spintronic applications. Here the authors experimentally and theoretically demonstrate a record high Curie temperature over 1000 K in B-site ordered double-perovskite, Sr3OsO6.

    • Yuki K. Wakabayashi
    • , Yoshiharu Krockenberger
    •  & Hideki Yamamoto

  • Article
    | Open Access

    The conduction electron and magnon interactions are essential for the understanding and development of spintronics and superconductivity. Here the authors show a deep binding energy kink in spin-resolved photoemission spectra which is understood as a signature the many-body spin flip excitation in Fe single crystal thin film.

    • E. Młyńczak
    • , M. C. T. D. Müller
    •  & C. M. Schneider

  • Article
    | Open Access

    Control of spin wave transport in magnonic crystals is vital for magnonic devices. Here the authors show low-loss spin-wave manipulation in nanometer thick magnonic crystals of discrete YIG stripes separated by air or CoFeB filled grooves exhibiting tunable bandgaps of 50–200 MHz.

    • Huajun Qin
    • , Gert-Jan Both
    •  & Sebastiaan van Dijken

  • Article
    | Open Access

    The charge order transition of commonly known magnetite has only recently been unraveled. Here, the measurement of the low-temperature high-pressure phase diagram of a related material (Fe4O5) elucidates the interplay of average oxidation state and charge-ordering phenomena in the iron oxide family.

    • Sergey V. Ovsyannikov
    • , Maxim Bykov
    •  & Leonid S. Dubrovinsky

  • Article
    | Open Access

    The consequences of electron-electron interactions are difficult to calculate reliably but this is needed to understand important physical properties such as ferromagnetism. Tusche et al. show that interaction effects in cobalt are nonlocal, presenting a challenge to future theoretical approaches.

    • Christian Tusche
    • , Martin Ellguth
    •  & Jürgen Kirschner

  • Article
    | Open Access

    The large intrinsic anomalous Hall effect (AHE) in magnetic Weyl semimetals is expected but rarely verified experimentally. Here, Wang et al. report large intrinsic AHE with linear dependence on magnetization in a half-metallic ferromagnet Co3Sn2S2 single crystal with Kagome lattice of Co atoms, arising dominantly from the Weyl fermions.

    • Qi Wang
    • , Yuanfeng Xu
    •  & Hechang Lei

  • Article
    | Open Access

    Magnetoresistance in ferromagnetic materials and heterostructures have been enabling advanced understanding of electron transport in solids, as well as new concepts for applications. Here the authors demonstrate a different type of magnetoresistance arising from anomalous Hall effect associated spin–charge mutual conversion.

    • Yumeng Yang
    • , Ziyan Luo
    •  & Yihong Wu

  • Article
    | Open Access

    Until now, there have been three choices for a room temperature (RT) single element ferromagnetic material in fundamental studies and applications. Here the authors achieved body-centered tetragonal phase ruthenium thin films by epitaxial growth, which is the 4th RT ferromagnetic single element material.

    • P. Quarterman
    • , Congli Sun
    •  & Jian-Ping Wang

  • Article
    | Open Access

    Competing interactions in frustrated magnets give rise to complex emergent phenomena, which challenge a full microscopic understanding but invite comparison to other systems. Bovo et al. find an analogy to classical gases and identify special temperatures that reveal fine details of the microscopic Hamiltonian.

    • L. Bovo
    • , M. Twengström
    •  & P. Henelius

  • Article
    | Open Access

    An ambipolar ferromagnet with both electron- and hole-doped ferromagnetism in a single material would facilitate understanding of ferromagnetic semiconductors for spintronic applications. Here the authors demonstrate ambipolar ferromagnetism in LaMnO3, using ionic liquid gating enabled electrostatic doping to produce electron–hole asymmetry.

    • L. M. Zheng
    • , X. Renshaw Wang
    •  & W. W. Cao

  • Article
    | Open Access

    The Joule heating free magnon spintronics advances conventional electronics but demands more magnon-based logic operations. Here the authors achieved the magnon spin valve functionality in a YIG/CoO/Co structure where the amplitude of transmitted magnon from the YIG layer is dependent on the relative alignment of the YIG and Co magnetization.

    • Joel Cramer
    • , Felix Fuhrmann
    •  & Mathias Kläui

  • Article
    | Open Access

    Two-dimensional electron gases that form in some complex oxide heterostructures may have useful functional behavior due to the interaction of the parent materials. Here the authors show that PZT/STO interfaces can host a spin-polarized electron gas, even though the bulk materials are nonmagnetic.

    • Yi Zhang
    • , Lin Xie
    •  & Xiaoqing Pan

  • Article
    | Open Access

    Understanding the effects of topological insulators on magnetization dynamics of adjacent magnetic materials is essential for novel spintronic devices. Here, Fanchiang et al. report thickness dependence of interfacial in-plane magnetic anisotropy and damping enhancement in Bi2Se3/yttrium iron garnet (YIG) bilayers, indicating an important role of topological surface states in the magnetization dynamics of YIG.

    • Y. T. Fanchiang
    • , K. H. M. Chen
    •  & J. Kwo

  • Article
    | Open Access

    Exploring the helicity-orbital coupling induced skyrmion properties is essential for the spintronic applications. Here the authors report the current controlled skyrmions and antiskyrmions dynamics with locking-unlocking helicity in frustrated magnets by including the dipole-dipole interaction in their model.

    • Xichao Zhang
    • , Jing Xia
    •  & Motohiko Ezawa

  • Article
    | Open Access

    Spin current-induced quasi-equilibrium state of magnon gas described by the Bose–Einstein statistics has been previously theoretically predicted. Here, authors experimentally show that the spin current-driven magnon distribution can be treated thermodynamically, and potentially form a Bose–Einstein condensate.

    • V. E. Demidov
    • , S. Urazhdin
    •  & S. O. Demokritov

  • Article
    | Open Access

    Strong coupling between magnons and photons allows coupling of magnongs to qubits, suggesting that magnon-polaritons could find applications in quantum information. Here, Zhang et al. observe an exceptional point and spontaneous symmetry breaking in a cavity magnon-polariton system.

    • Dengke Zhang
    • , Xiao-Qing Luo
    •  & J. Q. You

  • Article
    | Open Access

    The study of phase transitions in quantum ferromagnets has shown that the approach to a continuous quantum ferromagnetic transition is typically interrupted by either a tricritical point or a new magnetic phase. Here the authors show that LaCrGe3 exhibits both these features in its phase diagram.

    • Udhara S. Kaluarachchi
    • , Sergey L. Bud’ko
    •  & Valentin Taufour

  • Article
    | Open Access

    Owing to their conductivity, low-damping metallic ferromagnets are preferred to insulating ferromagnets in charge-based spintronic devices, but are not yet well developed. Here the authors achieve low magnetic damping in CoFe epitaxial films which is comparable to conventional insulating ferromagnetic YIG films.

    • Aidan J. Lee
    • , Jack T. Brangham
    •  & Fengyuan Yang

  • Article
    | Open Access

    Harvesting ohmic heat for signal processing is one of major challenges in modern electronics and spin caloritronics, but not yet well accomplished. Here the authors demonstrate a spin torque oscillator device driven by pure spin current arising from thermal gradient across an Y3Fe5O12/Pt interface.

    • C. Safranski
    • , I. Barsukov
    •  & I. N. Krivorotov

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